GB386055A - Improvements relating to drilling machines - Google Patents

Improvements relating to drilling machines

Info

Publication number
GB386055A
GB386055A GB2793531A GB2793531A GB386055A GB 386055 A GB386055 A GB 386055A GB 2793531 A GB2793531 A GB 2793531A GB 2793531 A GB2793531 A GB 2793531A GB 386055 A GB386055 A GB 386055A
Authority
GB
United Kingdom
Prior art keywords
drum
speeds
shaft
speed
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2793531A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
William Asquith Ltd
Original Assignee
William Asquith Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by William Asquith Ltd filed Critical William Asquith Ltd
Priority to GB2793531A priority Critical patent/GB386055A/en
Publication of GB386055A publication Critical patent/GB386055A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
    • B23Q1/0045—Control panels or boxes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

386,055. Speed control for drilling- machines. ASQUITH, Ltd., W., Highroad Well Works, and FEATHER, G., Wells by House, Highroad Well, both in Halifax, Yorkshire. Oct. 8, 1931, No. 27935. [Class 83 (iii).] An indicator for a drilling-machine for enabling an operator to see the correct speed for drills of different sizes and also the cutting speed comprises an arm a fixed to the changespeed shaft B of the spindle-driving gearing and terminating in an aperture A which moves over a drum C which is rotatable about the axis of shaft B by worm gearing c<3>. The surface of the drum is marked with drill sizes arranged in geometrical progression to conform with thirtysix spindle speeds, these speeds being obtained by rotary and longitudinal movements of the control shaft B. These speeds are indicated on a fixed plate e. The drum is also marked with cutting speeds which are observable through an aperture e<2>. In operation, if for instance a cutting speed of 60 feet per minute is to be used with a drill of 3<5>/16" diameter the drum is rotated until the 60 is observed in the aperture e<2> and the shaft B is moved until the indicator A is over the 3<5>/16" mark on the drum. This automatically selects the required spindle speed which by reference to the table e is seen to be 68 revolutions per minute.
GB2793531A 1931-10-08 1931-10-08 Improvements relating to drilling machines Expired GB386055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2793531A GB386055A (en) 1931-10-08 1931-10-08 Improvements relating to drilling machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2793531A GB386055A (en) 1931-10-08 1931-10-08 Improvements relating to drilling machines

Publications (1)

Publication Number Publication Date
GB386055A true GB386055A (en) 1933-01-12

Family

ID=10267645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2793531A Expired GB386055A (en) 1931-10-08 1931-10-08 Improvements relating to drilling machines

Country Status (1)

Country Link
GB (1) GB386055A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745104C (en) * 1937-10-13 1944-02-26 Hermann Ruehl Dipl Ing Setting device for drilling machines with setting marks that can be set to measuring divisions and are coupled to the switching levers
DE878748C (en) * 1942-01-31 1953-06-05 Marcel Pegard Display device for machine tools
DE1194222B (en) * 1956-12-15 1965-06-03 Boehringer Gmbh Geb Speed indicator for gear change gearbox with step changeover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745104C (en) * 1937-10-13 1944-02-26 Hermann Ruehl Dipl Ing Setting device for drilling machines with setting marks that can be set to measuring divisions and are coupled to the switching levers
DE878748C (en) * 1942-01-31 1953-06-05 Marcel Pegard Display device for machine tools
DE1194222B (en) * 1956-12-15 1965-06-03 Boehringer Gmbh Geb Speed indicator for gear change gearbox with step changeover

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